Forum Discussion

Bhupendra's avatar
Bhupendra
Icon for Altocumulus rankAltocumulus
Nov 11, 2023

how to display maintenance banner via LTM policy

how to display maintenance banner via LTM policy if uri matches /example and tcp address is not private_net Note: banner file (HTML ) is stored on ifile list.
application delivery
irule
whisperer's avatar
whisperer
Icon for MVP rankMVP
Nov 11, 2023

Just to clarify, you are looking for a maintenance page? When you say 'banner', it makes me think that you want to inject javascript or somerthing and put a banner atop the normally loaded page that provides an alert. That would be a separate and more difficult requirement of course. Simple maintenace page is no issues, and you can even store the HTML page, JS, and any images on the F5 itself using iFiles. Just some further thoughts here.

  • Bhupendra's avatar
    Bhupendra
    Icon for Altocumulus rankAltocumulus
    Nov 11, 2023

    Hi Whisperer,

    Thanks for response.

    I am putting maintenance page. I tried to put simple html page or message. Also tried to put html page via ifile (HTTP::respond 200 content [ifile get "maintenance_Page"] even it is not working for me.

     

    when HTTP_REQUEST {

    if { ([HTTP::uri] starts_with "/example") 

    HTTP::respond 200 content {
    <html>
    <head>
    <title>Apology Page</title>
    </head>
    <body>
    We are sorry, but the site you are looking for is temporarily out of service<br>
    If you feel you have reached this page in error, please try again.
    </body>
    </html>
    }
    }
    }

    • whisperer's avatar
      whisperer
      Icon for MVP rankMVP
      Nov 11, 2023

      Can you provide the output for the Virtual Server object? Also, what URL are you testing with in the web browser?

      • Bhupendra's avatar
        Bhupendra
        Icon for Altocumulus rankAltocumulus
        Nov 12, 2023

        Hi ,

        I found the issue. There are two irule applied on VIP. First irule mainentance page  and second irule to set same site cookie as none .

        In Packet capture i saw irule exceution error. First irule for mainentance page when http request is matching and it is responding to 200 with maintenece page.

        when second irule is exceuting, it is the http response release  to set  same site cookie as none as  first irule is already executed with response. It is failing.

        For testing i have removed second irule(same site cookie), it is working.

        Just want to know if  below same site irule is feasible via LTM policy or other solution.

        same site irule-

        when HTTP_RESPONSE_RELEASE {
        set cookie_names [HTTP::cookie names]
        foreach a_cookie $cookie_names
        {
        if {not [HTTP::cookie attribute $a_cookie exists {SameSite}] }
        {HTTP::cookie attribute $a_cookie insert "SameSite" "None"}
        }
        }